Diatoms stay afloat due to

Consider the following statements and select the correct set of features with respect to the life cycle of acellular slime moulds:
$a.$ Haploid vegetative stage as myxamoebae
$b.$ Diploid vegetative stage as plasmodium
$c.$ Capillitium
$d.$ Photosynthetic protists
$e.$ Sporic meiosis
$f.$ Isogamous sexual reproduction
$g.$ Anisogamous sexual reproduction with zygotic meiosis

Which of the following is true for the phylum Protozoa?

Which kingdom obtains nutrition through photosynthesis and absorption?

Which of the following kingdoms includes $Euglena$ and $Dinoflagellates$?

Which of the following organisms possesses two nuclei?